Lamp-socket.



W. G. TREGONING.

LAMP SOCKET. APPLICATION FILED r3120, 1909.

991 ,761 Patented May 9, 1911.

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'UNTTEE STATES PATENT @FFTQE.

WILLIAM C. TREGONING, 0F CLEVELAND, OHIO, ASSIGNOB TO THE TREGONINGELEC- TRIC MANUFACTURING COMPANY, OF CLEVELAND, OHIO, A CORPORATION.

LAMP-SOCKET.

To all whom it may concern:

Be it known that I, VILLIAM C. TREGON- mo, citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented certain new and useful Improvements in Lamp-Sockets, of whichthe following is a specification.

My invention relates to improvements in lamp sockets, and is embodied inthe construction of socket, substantially as herein shown and describedand particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of twosockets containing my invention and connected by a conducting cable.Fig. 2 is a central sectional elevation of one of the sockets, and Fig.3 is a perspective plan view thereof. Fig. 4 is a central sectionalelevation at right angles to Fig. 2 of the socket members andintervening wall but without the electrical portions, and Fig. 5 is aninside view of the outer member or cap.

As thus shown the socket consists of two porcelain or equivalent parts,the body or socket proper, B, and the so-called cap or outer member C.These parts are adapted to be variously disposed as conditions maydemand, but are shown in this instance as placed upon opposite sides ofa comparatively thin wall, plate or the like, indicated by D. Said wallor plate may be part of a magic lantern, show-case, cabinet, or otherarticle and in respect to which the said parts B and C sustain opposedbut connected operating relations, substantially as shown. To make suchconnection one with the other a suitable hole is formed in saidsupporting wall or plate to receive the inner face portion 2 of thesocket and about which is a flange or shoulder 3 adapted to abut againstsaid wall, and said parts are held together by one or more screws 4engaged through cap G into said socket, or rather into the fixedconducting strip 5 laid therein, which is the same mechanically, andsaid strip is fastened by a screw 6 from within the socket. Otherwisesaid piece 5 has a hole 7 at one end for screw 4 and a binding screw 8for the corresponding wire 9 of strand or cable S. Following this lead,the screw 6 is engaged through the threaded conducting shell 14 withinsocket B by which the lamp is engaged as usual, thus bringing said lampinto the electric circuit through said screw Specification of LettersPatent.

Application filed February 20, 1909.

Patented May 9, 1911. Serial No. 479,16.

6 with wire 9 of strand S. The other or made by the lamp, not shown,with the head i of screw 15, or with the conducting washer 16thereunder, an insulating disk or sheet 17 being interposed beneath saidwasher 16. As to these details, itmaybe said that they d not inthemselves involve the present invention and are mentioned moreparticularly to complete the description of the device in which theinvention is embodied. Having, therefore, the several parts arranged andoperating substantially as shown and de scribed, attention is againcalled to the relation of parts B and C to wall or plate D, one on eachside thereof. Now, as to this disposition of these two parts, it isimportant to know that not unfrequently it is undesirable, or, in fact,impracticable, to connect two lamps by the strand or cable S on theoutside of a wall carrying said parts. This may be so by reason of theshape or construction of the wall between the lamps, or because thelamps are so located upon the wall as to render outside connectionreally impossible. In other cases appearance or convenience maypractically demand an inside arrangement of the wire strand betweenlamps. Hence the present construction of sockets, which has its outer orcap member fashioned more or less in the shape of a hood with aninterior space 20 within which the respective wires 9 and 10 are adaptedto be spread and make separate engagement with their respectiveconnections on the face of socket member B, and said member B has one ormore inclined slots or recesses 22 across its edge under cap Ccommunicating with said chamber 20 and adapting the strand or cable tobe drawn through to the inside of easing, shell or wall D and to makeconnection with the next lamp from the inside through the correspondingslot 22 therein, as seen at the right in Fig. 1. The outer or cap memberof the socket has a central hole 24 for the introduction of the strandor cable S, and thus a single outside exposure of the cable is made andthe utmost freedom is afforded to run said cable from lamp to lamppractically regardless of structural diff gral portion 0 on its flange 0which is adapted to rest within the slot when the parts are clampedtogether and whereby the cap is locked against independent rotation onbody B, and said portion 0 also protects the cable S from abrasion andcontact With the edge (Z of the round opening of plate D, see Fig. 4.

What I claim is:

1. In sockets for electrical lamps, a two part socket, one part having achambered space inside and a direct inlet thereto at its center, and theother part being hollow to receive a conducting shell and having anoutlet from said space through its side and closed to the hollowinterior and adapting conducting Wires to pass through the same, andmeans to unite said parts.

2; A socket for electric lamps consisting of two parts adapted to beclamped together on opposite sides of a supporting wall, and one of saidparts provided with a central opening and the other with an inclinedslot across its inner edge in communication with said opening andadapted to accommodate a strand of conducting Wires.

8. A. socket member for electric lamps having an inclined slot acrossits inner edge and a cap having a central opening and a chamber insidecommunicating with said opening and said slot, in combination with awall against which said parts are oppositely clamped and a strand ofelectric wires connected in said socket member.

L. A socket for electric lamps having one member provided with a channelacross its edge for a strand of electric wires and another memberprovided with a chamber in side open to said channel and having anopening in its middle, in combination with a wall supporting saidmembers on opposite sides and provided with an opening adapted to seatthe first named members therein.

5. A socket for lamps comprising a hollow body adapted to receive thelamp and having terminal connections at the rear thereof and said bodyhaving a through opening from side to rear thereof, combined with aplate having an opening through which said body projects, and a capmember to cover the terminal end of said body and means to clamp thesaid parts upon said plate.

In testimony whereof I aflix my signature in presence of two witnesses.

WILLIAM C. TREGONING.

Vitnesses E. M. FISHER, F. G. Musson.

Copies of this patent may be obtained. for five cents each, byaddressing the Commissioner of Patents, Washington, D. C.

